122221122102210 has 128 divisors (see below), whose sum is σ = 307888410009600. Its totient is φ = 31014511628544.

The previous prime is 122221122102179. The next prime is 122221122102263. The reversal of 122221122102210 is 12201221122221.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72148537 + ... + 73823123.

It is an arithmetic number, because the mean of its divisors is an integer number (2405378203200).

Almost surely, 2^{122221122102210} is an apocalyptic number.

122221122102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122221122102210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153944205004800).

122221122102210 is an abundant number, since it is smaller than the sum of its proper divisors (185667287907390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122221122102210 is a wasteful number, since it uses less digits than its factorization.

122221122102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676080.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122221122102210 its reverse (12201221122221), we get a palindrome (134422343224431).

The spelling of 122221122102210 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred two thousand, two hundred ten".